1. Division of Periodontology; Department of Dentistry; Faculty of Health Sciences; University Fernando Pessoa; Porto Portugal
2. Division of Oral Surgery and Medicine; Faculty of Dentistry; University of Porto; Porto Portugal
3. Department of Neurology; Hospital São João and Faculty of Medicine; University of Porto; Porto Portugal
4. Division of Biostatistics; Faculty of Health Sciences; University Fernando Pessoa; Porto Portugal
5. REQUIMTE-UP; Porto Portugal
6. Head of Faculty of Health Sciences; University Fernando Pessoa; Porto Portugal